– Agent Sessions Day on Feb 19th

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Third-party agents in Visual Studio Code

Third-party agents in Visual Studio Code are AI agents developed by external providers, such as Anthropic and OpenAI. Third-party agents enable you to use the unique capabilities of these AI providers, while still benefiting from the unified agent sessions management in VS Code and the rich editor experience for coding, debugging, testing, and more. In addition, you can use these providers with your existing GitHub Copilot subscription.

VS Code uses the provider's SDK and agent harness to access the agent's unique capabilities. You can use both local and cloud-based third-party agents in VS Code. Integration with cloud-based third-party agents is enabled through your GitHub Copilot plan.

Note

Third-party coding agents in the cloud are currently in preview.

Why use third-party agents?

The benefits of using third-party agents in VS Code are:

  • Use unique capabilities: Each third-party agent has its own strengths and specialized features. VS Code uses the provider's SDK and agent harness to access these capabilities, letting you choose the best agent for your coding tasks.
  • Unified experience: Manage all your agent sessions, including third-party agents, from the same VS Code agent experience.
  • Rich editor integration: Use VS Code's coding features, such as rich debugging and testing in combination with the agent's capabilities.
  • Billing: Authenticate and manage billing through your existing GitHub Copilot subscription without additional setup.

Enable third-party cloud agents

You need to enable support for third-party agents in the cloud in your Copilot account settings before you can use them in VS Code. Follow the steps in Enabling or disabling third-party coding agents in your repositories in the GitHub documentation.

You don't need to install the provider's VS Code extension to use their cloud agent in VS Code.

Claude Agent (Preview)

Claude agent sessions provide agentic coding capabilities powered by Anthropic's Claude Agent SDK directly in VS Code. The Claude agent operates autonomously on your workspace to plan, execute, and iterate on coding tasks with its own set of tools and capabilities.

Enable or disable support for Claude agent sessions with the

github.copilot.chat.claudeAgent.enabled
  • Open in VS Code
  • Open in VS Code Insiders
setting.

Start a Claude agent session

To start a new Claude agent session:

  1. Open the Chat view (⌃⌘I (Windows, Linux Ctrl+Alt+I)) and select New Chat (+).

  2. Choose between a local or cloud agent session:

    • For a local session, select Claude from the Session Type dropdown

      Screenshot showing session type dropdown with Claude agent option selected.

    • For a cloud session, select Cloud from the Session Type dropdown. Then, select Claude from the Partner Agent dropdown.

      Screenshot showing cloud agent partner selection picker in chat input.

  3. Enter your prompt and let the agent work on the task

    The Claude agent autonomously determines which tools to use and makes changes to your workspace.

Claude agent slash commands

The Claude agent provides specialized slash commands for advanced workflows. Type / in the chat input box to see the available commands.

Slash command Description
/agents Create and manage specialized Claude agents for specific tasks. Define custom agent behaviors through a wizard. Learn more about Claude sub-agents.
/hooks Configure lifecycle hooks that execute at key points during Claude agent sessions, such as before or after tool execution. Learn more about Claude hooks.
/memory Open and edit CLAUDE.md memory files that provide persistent context to Claude agent across sessions.
/init Initialize a new CLAUDE.md memory file for your project.
/pr-comments Get comments from a pull request.
/review Review code changes in a pull request.
/security-review Perform a security review of pending code changes on the current branch.

Permission modes

Claude agent requests permission before performing certain operations. By default, file edits within your workspace are auto-approved, while other operations like running terminal commands might require confirmation.

You can choose how the agent applies changes to your workspace:

  • Edit automatically: Claude agent makes changes to your workspace autonomously as it works on the task.
  • Request approval: Claude agent asks for your review before making changes to your workspace.
  • Plan: Claude agent outlines its intended approach before starting work on the task.

Screenshot showing Claude agent permission mode options.

Caution

The

github.copilot.chat.claudeAgent.allowDangerouslySkipPermissions
  • Open in VS Code
  • Open in VS Code Insiders
setting bypasses all permission checks. Only enable this in isolated sandbox environments with no internet access.

OpenAI Codex

The OpenAI Codex agent uses OpenAI's Codex to perform coding tasks autonomously. Codex runs can run interactively in VS Code or unattended in the background.

To disable the OpenAI Codex agent, disable or uninstall the OpenAI Codex extension in VS Code.

Prerequisites

  • A Copilot Pro+ subscription for authentication
  • For local sessions, the OpenAI Codex extension

OpenAI Codex in VS Code enables you to use your Copilot Pro+ subscription to authenticate and access Codex without additional setup. Get more information about GitHub Copilot billing and premium requests in the GitHub documentation.

Start a Codex session

To start a new OpenAI Codex agent session:

  1. Open the Chat view (⌃⌘I (Windows, Linux Ctrl+Alt+I)) and select New Chat (+).

  2. Choose between a local or cloud agent session:

    • For a local session, select Codex from the Session Type dropdown

      Screenshot showing session type dropdown with Codex agent option selected.

    • For a cloud session, select Cloud from the Session Type dropdown. Then, select Codex from the Partner Agent dropdown.

      Screenshot showing cloud agent partner selection picker in chat input.

  3. Enter your prompt in the chat editor input and let the agent work on the task

Frequently asked questions

Can I use third-party agents with my existing Copilot subscription?

Yes, third-party agents in VS Code authenticate and manage billing through your existing GitHub Copilot subscription. For cloud-based third-party agents, follow the steps to enable the agent.

For cloud-based third-party agents, availability might be limited based on your Copilot subscription plan. Check About Third-party agents in the GitHub documentation for more information.

How are third-party agents different from using the provider's VS Code extension?

Both the provider's VS Code extension and the third-party agent integration in VS Code let you use the provider's AI capabilities and agent harness. The difference is in billing: when you use third-party agents in VS Code, GitHub bills you through your Copilot subscription. When you use the provider's extension, you are billed through the provider's subscription.

Why are there two Claude/Codex agents?

VS Code lets you choose between local and cloud-based third-party agents, depending on the provider's availability. When you select the third-party agent from the Session Type dropdown, a local agent session is created for that provider.

To choose a cloud-based third-party agent, first select the Cloud option from the Session Type dropdown, and then select the provider from the Partner Agent dropdown.

Related resources

02/04/2026